Grate-bar.



D. DEE.

GRATE BAR.

AAAAAAAAAAAA IL-ED1UNE 5,1916- Patented Marl 27, 1917.

nventor by y I I I I rmrrnn STATES PATENT OFFICE.

DANIEL DEE, OF POCATELLO, IDAHO, ASSIGNOR TO DEE MANUFACTURING COMPANY,

OF POCATELLO, IDAHO, A CORPORATION.

GnArE-BAR.

Application filed. June 5, 1916. Serial No. 101,843.

To all whom it may concern:

Be it known that I, DANIEL DEE, a citizen of the United States, residingat Pocatello, in the county of Bannock and State of Idaho, have inventeda new and useful Grate-Bar, of which the following is a specification. r

The present invention appertains to grate bars, and is particularly animprovement over the grate bar disclosed in my Patent No. 1,064,820,granted June 17, 1913.

It is the object of the invention toprovide a grate bar of the generalconstruction disclosed in said patent, and provided with novel means forthe adjustment of the spindle or journal at one end of the bar, saidmeans being extremely simple yet thoroughly effective.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

The invention is illustrated'in the accompanying drawing, wherein Figure1 is a longitudinal section of the improved grate bar, portions beingshown 1n elevation.

Fig. 2 is an enlarged cross section of the grate bar showing the partsinengagement, and

Fig. 3 is a similar view showing the parts in position to permit of theremoval, insertion, or adjustment of the spindle or ad ustable journal.

The body of the grate bar is composed of longitudinally spaced rings 1connected by longitudinal ribs 2, said parts being cast from suitablemetal, and the body is provided at one end with an integral outstandingjournal or trunnion 3 to mount'the respective end of the bar forrotation. This bar is used with others of the same construction toprovide the grate of the furnace, stove or the like, for supporting thecoals, and when the bars are rotated, they serve to grind the clinkersand ashes,.as well as sifting them downwardly to the ash pit.

The present invention resides in the manner of assembling the spindle 4with the Specification of Letterslatent.

f Patented Mar. 27, 191?.

body of the grate bar, to provide the journal' or trunnion at theopposite end of the body. Said spindle 4 projects within the tubularor'hollow body of the grate bar, at that end opposite the journal 3, andthe spindle a is provided adjacent its inner end with collars 5 adaptedto fit snugly within and to rotate slightlywith respect to the body ofthe grate bar. -The collars 5 are suitably spaced to hold the spindleflandbody coaxial or' in concentric arrangement. Thecollars 5 are ofcircular outline, with the exception that each collar 5 has itsperiphery cut away slightly on an eccentric curve,'as 'at6,

and'the collar 5 is provided between the ends of the cut away portion 6-with a curved notch 7. One of the ribs or portions 2 of the body isprovided with a longitudinal series of spaced rounded lugs 8 havingrounded notches 9 therebetween, and the bottoms of said notches arespaced slightly from the inner surface of the rib. The lugs 8 extendfromthe open end of the body to a point between the ends thereof, to providefor the proper adjustment of the spindle 4.

hen the spindle 4 and body are rotated relative to one another, so thatthe notches 7 are adjacent or in alinement with the lugs 8, as seen inFig. 3, the spindle 4 can be inserted or removed, and can be adjusted toany desired position with respect to the body, whereby the spindle 4 andjournal 3 will properly accommodate the particular fire box. l/Vhen thespindle 4 is brought to the desired position, and rotated with respectto the body, the edges of the collars 5 are moved into the respectivenotches 9 between the lugs 8, and due to the curvature of the portions6, they will provide a cam or binding action, whereby to rigidly securethe parts in place. It is thus possible to adjust the spindle 4 in orderthat the grate bars can be applied to various furnaces, and the gratebar is composed of but two parts which can be readily cast or otherwiseformed.

Having thus described the invention, what is claimed as new is 1. Agrate bar embodying a tubular body and a spindle projecting within thebody, said spindle and body having interengageable portions to permit ofthe relative longitudinal movement of the spindle and body when they areturned to a certain position relative to one another, said portionsbeing interengageable by a relative turning movement of the body andspindle to prevent the relative longitudinal movement of said parts atvarious adjustments thereof.

2. A grate bar embodying a tubular body having lugs, and a spindleprojectable within the body and having means to fit snugly therein andprovided with notches for the passage of said lugs, said meansbeing'engageable with the lugs.

3. A grate bar embodying a tubular body having a longitudinal series oflugs, and a spindle projectable within the body and having collars tofit snugly in the body and provided with notches for the passage of saidlugs, said collars being engageable between the lugs when the body andspindle are rotated l'elilillNG to one another.

at. A grate bar embodying a tubular body provided with a longitudinalseries of lugs and notches therebetween, and a spindle projectablewithin the body and having spaced circular collars to fit snugly in thebody,

each collar being provided with a cut away eccentric portion engageable111 said notches, and said cut away port ons having notches for thepassage of said lugs.

and a notch between the ends of said portion A for the passage of saidlugs.

In testimony that I claim the foregoing as my own, I have hereto afiixedmy signature in the presence of two witnesses.

DANIEL DEE.

\Vitnesses l5. J. HERWIUK, THos. TURNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

